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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 30, 2017
Accounting Policies [Abstract] |
Shipping and handling fees |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Shipping and handling fees billed |  | $ | 137,000 |  |  | $ | 110,000 |  |  | $ | 113,000 |
Cost of shipping and handling fees billed |  | $ | 185,000 |  |  | $ | 108,000 |  |  | $ | 112,000 |
Doubtful receivables |
|  | 2017 |  |  | 2016 |
Allowances Related to |  |  |  |  |  |
Customer C |  | $ | 500,000 |  |  | $ | 800,000 |
Customer E |  |  | - |  |  |  | 198,000 |
Other Allowances |  |  | 169,000 |  |  |  | 83,000 |
|  | $ | 669,000 |  |  | $ | 1,081,000 |
Inventories |
|  | 2017 |  |  | 2016 |
Bulk ingredients |  | $ | 4,159,000 |  |  | $ | 7,044,000 |
Reference standards |  |  | 1,027,000 |  |  |  | 1,033,000 |
Consumer Products - Finished Goods |  |  | 503,000 |  |  |  | - |
Consumer Products - Work in Process |  |  | 249,000 |  |  |  | - |
|  |  | 5,938,000 |  |  |  | 8,077,000 |
Less valuation allowance |  |  | 142,000 |  |  |  | 164,000 |
|  | $ | 5,796,000 |  |  | $ | 7,913,000 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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